Studies On Rice Variety, Diseases And Pest Control In Guangchang County

In order to ensured food security and effective supplied main rice products,With create high-yielding acres of ten thousand mu shall contiguous demonstration field as the basis,According to the requirements of good seed matching method,To assemble the existing advanced and practical technology,with an emphasis on rice demonstration and prevention,to promote the use of good varieties,with scientific managing fertilizer,for A demonstration experiment in the prevention and control of plant diseases and insect pests,integrated and popularizated marketing model is suitable for high yield cultivation mature technology,promoted the combination of prevention and good seed matching,led a Demonstration of large area balanced production,to sustainable improvement of rice production capacity in Guangchang county.The paper is divided into 2 parts:1.In the application of fine rice varieties,was conducted a comparative experiment of indica and japonica varieties,exploration of production capacity,environmental adaptability,disease resistance for the indica and japonica,to provided the theory and practice basis for realization of change Indica rice into japonica rice on production.It is the test results: The growth period of hybrid japonica rice and conventional japonica rice was longer than hybrid indica rice,the stem plant of hybrid indica rice was higher than the hybrid japonica rice and conventional japonica rice,the tiller number of Japonica hybrid rice was higher than conventional japonica and hybrid indica;The effective panicle number of conventional japonica rice was more than hybrid japonica rice and hybrid indica rice,the average number of grains per panicle of hybrid japonica rice was more than conventional japonica rice and hybrid indica rice,the average spike rate of conventional japonica rice was higher than hybrid japonica rice and hybrid indica rice,the average seed setting rate of hybrid japonica rice was more than conventional Japonica rice and indica hybrid rice,the average real output of hybrid japonica rice was higher than conventional Japonica rice and indica hybrid rice,Japonica hybrid rice was more suitable for local cultivation,the most suitable variety was Yongyou 538;The average net income of hybrid japonica rice was higher than conventional Japonica rice and indica hybrid rice,the lodging resistance of japonica rice was Stronger than indica rice,the anti false smut and sheath blight ability of conventional japonica rice was Stronger than hybrid japonica rice and hybrid indica rice.2.In terms of rice diseases and insect pests,it was explored the effects of yield loss on prevention and non-prevention diseases and insect pests in the middle-season rice.The results showed that: the diseases and insect pests was medium occurrence of the year in the middle-season rice,the Leaf-rolle and the Sheath blight was seriously occurrence at later period.The yield loss rate was 13.78% at non-prevention diseases and insect pests in the middle-season rice with these conditions.Stated thus: the average real output of hybrid japonica rice was higher than conventional Japonica rice and indica hybrid rice what Plant in Guangchang,Japonica hybrid rice was more suitable for local cultivation,the most suitable variety was Yongyou538;The yield loss rate was 10.28% that was higher at non-prevention diseases and insect pests than prevention diseases and insect pests in the middle-season rice with the year of ecology conditions.It was formed a high-yielding technology of integrated of production in middle-season rice through this experiment in Guangchang county.It was greatest increase the harvest with planting Yongyou 538,and control of diseases and insect pests.